@serenity-is/corelib / Fluent / one

Function: one()

Adds a one-time event listener (implementation).

Param

Target element to listen on.

Param

Event type; may include a .namespace suffix.

Param

Event listener or selector when delegating.

Param

Delegated handler when handler is a selector.

Call Signature

one<K>(element, type, listener): void

Defined in: src/base/fluent.ts:573

Adds a one-time event listener that is automatically removed after the first invocation.

Type Parameters

K

K extends keyof HTMLElementEventMap

Parameters

element

EventTarget

Target element to listen on.

type

K

Event type; may include a .namespace suffix.

listener

(this, ev) => any

Callback to invoke once when the event fires.

Returns

void

void.

Call Signature

one(element, type, listener): void

Defined in: src/base/fluent.ts:581

Adds a one-time event listener.

Parameters

element

EventTarget

Target element to listen on.

type

string

Event type; may include a .namespace suffix.

listener

EventListener

Callback to invoke once when the event fires.

Returns

void

void.

Call Signature

one(element, type, selector, delegationHandler): void

Defined in: src/base/fluent.ts:590

Adds a one-time delegated event listener.

Parameters

element

EventTarget

Target element to listen on.

type

string

Event type; may include a .namespace suffix.

selector

string

CSS selector to delegate to.

delegationHandler

Function

Handler invoked once when the delegated target matches.

Returns

void

void.